High-Temperature Oil Seal Selection Guide (2026)-Hensen Sealing_Gaskets

Home

High-Temperature Oil Seal Selection Guide (2026)

Release time:

May 06,2026

High-temperature oil seals prevent leakage, reduce downtime, and extend equipment life in engines, hydraulics, and industrial machinery. Choosing the right material is critical for reliability above 100°C.
Key Materials & Temperature Ranges
NBR (Nitrile Rubber): -30°C to 100°C; cost-effective, good oil resistance. Not for sustained high heat.
FKM (Fluoroelastomer/Viton®): -20°C to 200°C; excellent heat, oil, and chemical resistance. Ideal for 120–200°C applications (trucks, pumps, construction).
VMQ (Silicone Rubber): -60°C to 225°C; flexible at extreme temps, poor oil resistance. Best for dry heat/air.
PTFE: -65°C to 260°C; inert, low friction, wear-resistant. For >200°C and corrosive fluids.
FFKM: Up to 300°C; ultra-performance for aerospace/chemicals, high cost.
Core Selection Criteria
1.Temperature: Match continuous rating + 20% peak margin.
2.Media: FKM/PTFE for oils/fuels; avoid EPDM in oil.
3.Speed/Pressure: High-speed units need low-friction lips; high pressure uses metal-reinforced designs.
4.Environment: Ozone/UV exposure favors FKM/VMQ.
Quick Recommendations
100–150°C: FKM (best value).
150–200°C: FKM or VMQ.

200°C: PTFE or FFKM.

As a professional seal manufacturer, we provide custom high-temperature oil seals in FKM, PTFE, and more. Contact us for material selection and free quotes.